1
|
Kaper T, Geik D, Fornfeist F, Schmidtmann M, Doye S. Stereoselective Synthesis of Tertiary Allylic Amines by Titanium-Catalyzed Hydroaminoalkylation of Alkynes with Tertiary Amines. Chemistry 2021; 28:e202103931. [PMID: 34936144 PMCID: PMC9303398 DOI: 10.1002/chem.202103931] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Indexed: 12/01/2022]
Abstract
Intermolecular hydroaminoalkylation reactions of symmetrical and unsymmetrical alkynes with tertiary amines take place in the presence of catalytic amounts of TiBn4, Ph3C[B(C6F5)4], and a sterically demanding aminopyridinato ligand precursor. The resulting products, synthetically and pharmaceutically useful tertiary β,γ‐disubstituted allylic amines, are formed in convincing yields and with excellent stereoselectivity. Particularly promising for future applications is the fact that even the industrial side product trimethylamine can be used as a substrate.
Collapse
Affiliation(s)
- Tobias Kaper
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Dennis Geik
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Felix Fornfeist
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Marc Schmidtmann
- Carl-von-Ossietzky-Universitat Oldenburg: Carl von Ossietzky Universitat Oldenburg, Institut für Chemie, GERMANY
| | - Sven Doye
- Universitaet Oldenburg, Institut fuer Chemie, Carl-von-Ossietzky-Strasse 9-11, 26129, Oldenburg, GERMANY
| |
Collapse
|
2
|
Takeda Y, Toyoda K, Sameera WMC, Tohnai N, Minakata S. Palladium‐Catalyzed Regioselective and Stereospecific Ring‐Opening Suzuki‐Miyaura Arylative Cross‐Coupling of 2‐Arylazetidines with Arylboronic Acids. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Youhei Takeda
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - Kazuya Toyoda
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - W. M. C. Sameera
- Institute of Low Temperature Science Hokkaido University North 19 Kita-ku, Sapporo Hokkaido 0600819 Japan
| | - Norimitsu Tohnai
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - Satoshi Minakata
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| |
Collapse
|
3
|
Sajjad F, Reddy AGK, Xing D, Dong S, Hu W. Ruthenium(II)-catalyzed facile synthesis of 3-(phenylamino)-1H-indole-2-carboxylates from anilines and diazo pyruvates promoted by FeCl3. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
4
|
Soeta T, Ukaji Y. Development of Multi-functional NHC Catalysts bearing Pyridine Moiety: Application to Catalytic Asymmetric Reactions. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takahiro Soeta
- Division of Material Chemistry, Graduate School of Natural Science and Technology
| | - Yutaka Ukaji
- Division of Material Chemistry, Graduate School of Natural Science and Technology
| |
Collapse
|
5
|
Samanta S, Santra S, Chatterjee R, Majee A. A new tandem synthesis of bis(β,β'-dialkoxy carbonyl) compounds by oxidative cleavage of aziridines under metal-free conditions. Org Biomol Chem 2020; 18:551-556. [PMID: 31894233 DOI: 10.1039/c9ob02451d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and new approach has been developed to synthesize bis(β,β'-dialkoxy carbonyl) derivatives through the reaction between N-tosylaziridines and malonate esters under ambient air using tBuOK in DMSO solvent. A plausible reaction pathway has been predicted. Control experiments suggested that the reactions proceed through the formation of α-aminoketones. This reaction offers a broad substrate scope, metal-free synthesis, excellent regioselectivity, easily accessible reactants, and simple operation. A gram-scale synthesis demonstrates the potential applications of the present method.
Collapse
Affiliation(s)
- Satyajit Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
| | | | | | | |
Collapse
|
6
|
Xing S, Xia H, Guo J, Zou C, Gao T, Wang K, Zhu B, Pei M, Bai M. Diastereoselective Construction of 2-Aminoindanones via an In(OTf) 3-Catalyzed Domino Reaction. J Org Chem 2019; 84:8984-8997. [PMID: 31250644 DOI: 10.1021/acs.joc.9b00876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An In(OTf)3-catalyzed domino reaction involving sequential oxidative ring opening of aziridines by using the solvent dimethyl sulfoxide and intramolecular Michael addition has been developed for the modular synthesis of 2-aminoindanone compounds by the formation of one new C═O bond and one new C-C bond. The notable feature of this strategy includes broad substrate scope, excellent trans-diastereoselectivities, highly functionalized products, and mild conditions. The catalyst In(OTf)3 plays an important role in the formation of the indanone ring.
Collapse
Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Hanyu Xia
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Junshuo Guo
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Chenchen Zou
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Tingxuan Gao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Meiqi Pei
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Mengpei Bai
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| |
Collapse
|
7
|
Zhu L, Xiong J, An J, Chen N, Xue J, Jiang X. Highly efficient regio-selective ring-opening nucleophilic fluorination of aziridines and azetidines: access to β- or γ-fluorinated amino acid derivatives. Org Biomol Chem 2019; 17:3797-3804. [PMID: 30916695 DOI: 10.1039/c9ob00172g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we have presented a facile and efficient method of ring-opening nucleophilic fluorination of aziridines, affording highly regio-selective β-fluorinated amines. Firstly, the example of ring-opening hydrofluorination of azetidines was reported. Then, the Olah's reagent also provided a promising method for the construction of enantioenriched β-fluoro-α-amino acid derivatives, which could be used for the preparation of peptide-based bioactive molecules.
Collapse
Affiliation(s)
- Liping Zhu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | | | | | | | | | | |
Collapse
|
8
|
Mahato S, Santra S, Zyryanov GV, Majee A. Metal-Free Amidation Reactions of Terminal Alkynes with Benzenesulfonamide. J Org Chem 2019; 84:3176-3183. [DOI: 10.1021/acs.joc.8b03065] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sachinta Mahato
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 South Kovalevskoy Street, 620219 Yekaterinburg, Russian Federation
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| |
Collapse
|
9
|
Wang L, Cheng P, Wang X, Wang W, Zeng J, Liang Y, Reiser O. Visible-light promoted sulfonamidation of enol acetates to α-amino ketones based on redox-neutral photocatalysis. Org Chem Front 2019. [DOI: 10.1039/c9qo01119f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light mediated photoredox-catalyzed sulfonamidation of enol acetates to α-amino ketones has been developed. The process features mild and operationally simple reaction conditions and does not require an external oxidant.
Collapse
Affiliation(s)
- Lin Wang
- Key Laboratory of Traditional Chinese Veterinary Medicine of Hunan Province
- Hunan Agricultural University
- Changsha
- China
| | - Pi Cheng
- Key Laboratory of Traditional Chinese Veterinary Medicine of Hunan Province
- Hunan Agricultural University
- Changsha
- China
| | - Xinhao Wang
- Key Laboratory of Traditional Chinese Veterinary Medicine of Hunan Province
- Hunan Agricultural University
- Changsha
- China
| | - Wei Wang
- Key Laboratory of Traditional Chinese Veterinary Medicine of Hunan Province
- Hunan Agricultural University
- Changsha
- China
| | - Jianguo Zeng
- Key Laboratory of Traditional Chinese Veterinary Medicine of Hunan Province
- Hunan Agricultural University
- Changsha
- China
| | - Yun Liang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province
- Hunan Normal University
- Changsha
- China
| | - Oliver Reiser
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
| |
Collapse
|
10
|
Talukdar R. BF3·OEt2 catalyzed base-free regiospecific ring opening of N-activated azetidines with (E)-1-arylidene-2-arylhydrazines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-018-1489-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Regio- and diastereoselective Reformatsky reaction of chiral fluoroalkyl α,β-unsaturated N - tert -butanesulfinyl ketimines: Efficient asymmetric synthesis of β-fluoroalkyl β-vinyl β-amino esters. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
12
|
Abonia R, Garay A, Castillo JC, Insuasty B, Quiroga J, Nogueras M, Cobo J, Butassi E, Zacchino S. Design of Two Alternative Routes for the Synthesis of Naftifine and Analogues as Potential Antifungal Agents. Molecules 2018; 23:molecules23030520. [PMID: 29495412 PMCID: PMC6017661 DOI: 10.3390/molecules23030520] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/17/2018] [Accepted: 02/21/2018] [Indexed: 02/07/2023] Open
Abstract
Two practical and efficient approaches have been implemented as alternative procedures for the synthesis of naftifine and novel diversely substituted analogues 16 and 20 in good to excellent yields, mediated by Mannich-type reactions as the key step of the processes. In these approaches, the γ-aminoalcohols 15 and 19 were obtained as the key intermediates and their subsequent dehydration catalyzed either by Brønsted acids like H₂SO₄ and HCl or Lewis acid like AlCl₃, respectively, led to naftifine, along with the target allylamines 16 and 20. The antifungal assay results showed that intermediates 18 (bearing both a β-aminoketo- and N-methyl functionalities in their structures) and products 20 were the most active. Particularly, structures 18b, 18c, and the allylamine 20c showed the lowest MIC values, in the 0.5-7.8 µg/mL range, against the dermatophytes Trichophyton rubrum and Trichophyton mentagrophytes. Interesting enough, compound 18b bearing a 4-Br as the substituent of the phenyl ring, also displayed high activity against Candida albicans and Cryptococcus neoformans with MIC80 = 7.8 µg/mL, being fungicide rather than fungistatic with a relevant MFC value = 15.6 µg/mL against C. neoformans.
Collapse
Affiliation(s)
- Rodrigo Abonia
- Grupo de Investigación de Compuestos Heterocíclicos (GICH), Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Alexander Garay
- Grupo de Investigación de Compuestos Heterocíclicos (GICH), Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Juan C Castillo
- Grupo de Investigación de Compuestos Heterocíclicos (GICH), Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
- Escuela de Ciencias Químicas, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia UPTC, Avenida Central del Norte, A. A. 150003 Tunja, Colombia.
| | - Braulio Insuasty
- Grupo de Investigación de Compuestos Heterocíclicos (GICH), Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Jairo Quiroga
- Grupo de Investigación de Compuestos Heterocíclicos (GICH), Departamento de Química, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Manuel Nogueras
- Department of Inorganic and Organic Chemistry, Universidad de Jaén, 23071 Jaén, Spain.
| | - Justo Cobo
- Department of Inorganic and Organic Chemistry, Universidad de Jaén, 23071 Jaén, Spain.
| | - Estefanía Butassi
- Área de Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, CP 2000 Rosario, Argentina.
| | - Susana Zacchino
- Área de Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, CP 2000 Rosario, Argentina.
| |
Collapse
|
13
|
Selva E, Sempere Y, Ruiz-Martínez D, Pablo Ó, Guijarro D. Synthesis of Allylic Amines by Asymmetric Transfer Hydrogenation of α,β-Unsaturated N-(tert-Butylsulfinyl)imines. J Org Chem 2017; 82:13693-13699. [DOI: 10.1021/acs.joc.7b02472] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Elisabet Selva
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Yeshua Sempere
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Débora Ruiz-Martínez
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Óscar Pablo
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - David Guijarro
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| |
Collapse
|
14
|
Wang TL, Xu B, Lu SH, Wang XC, Quan ZJ. Direct Allylation of Aliphatic Primary Amines via Al(OTf) 3-Catalyzed One-Pot Four-Component Reaction. ChemistrySelect 2017. [DOI: 10.1002/slct.201701555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tong-Lin Wang
- Laboratory of Eco-Environment-Related Polymer Materials; Ministry of Education, China; Gansu Key Laboratory of Polymer Materials; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou, Gansu 730070 People's Republic of China
| | - Bin Xu
- Laboratory of Eco-Environment-Related Polymer Materials; Ministry of Education, China; Gansu Key Laboratory of Polymer Materials; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou, Gansu 730070 People's Republic of China
| | - Shi-Hong Lu
- Laboratory of Eco-Environment-Related Polymer Materials; Ministry of Education, China; Gansu Key Laboratory of Polymer Materials; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou, Gansu 730070 People's Republic of China
| | - Xi-Cun Wang
- Laboratory of Eco-Environment-Related Polymer Materials; Ministry of Education, China; Gansu Key Laboratory of Polymer Materials; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou, Gansu 730070 People's Republic of China
| | - Zheng-Jun Quan
- Laboratory of Eco-Environment-Related Polymer Materials; Ministry of Education, China; Gansu Key Laboratory of Polymer Materials; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou, Gansu 730070 People's Republic of China
| |
Collapse
|
15
|
Xing S, Cui H, Gu N, Li Y, Wang K, Tian D, Qin J, Liu Q. AgOTf-catalyzed sequential synthesis of 4-isoquinolones via oxidative ring opening of aziridines and aza-Michael addition. Org Biomol Chem 2017; 15:8308-8312. [PMID: 28933501 DOI: 10.1039/c7ob02167d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient AgOTf-catalyzed sequential reaction involving the oxidative ring-opening of aziridines by DMSO and aza-Michael addition has been developed. A series of 2,3-dihydro-4(1H)-isoquinolones were afforded in moderate to good yields by the formation of one new C[double bond, length as m-dash]O bond and one new C-N bond. The features of this sequential reaction include high bonding efficiency, use of a catalytic amount of catalysts, a broad substrate scope and mild conditions. This methodology provides a good choice for constructing the libraries of 2,3-dihydro-4(1H)-isoquinolones.
Collapse
Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China.
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Huang J, Zheng J, Wu W, Li J, Ma Z, Ren Y, Jiang H. Palladium-Catalyzed Intermolecular Oxidative Cyclization of Allyltosylamides with AcOH: Assembly of 3-Pyrrolin-2-ones. J Org Chem 2017; 82:8191-8198. [PMID: 28686019 DOI: 10.1021/acs.joc.7b00804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first example of Pd-catalyzed oxidative cyclization of allyltosylamides with acetic acid is reported. This transformation involved C-N/C-C bond formation and provided 3-pyrrolin-2-ones in a one-pot manner with easy-operation, excellent atom economy and good yields. Mechanistic studies indicate that the reaction proceeds through intermolecular aminopalladation, migratory insertion, reinsertion and β-hydride elimination processes.
Collapse
Affiliation(s)
- Jiuzhong Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Zhiqiang Ma
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Yanwei Ren
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| |
Collapse
|
17
|
Wani IA, Sayyad M, Ghorai MK. Domino ring-opening cyclization (DROC) of activated aziridines and epoxides with nitrones via dual-catalysis “on water”. Chem Commun (Camb) 2017; 53:4386-4389. [DOI: 10.1039/c7cc01033h] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and green approach for the synthesis of non-racemic 1,2,4-oxadiazinanes and 1,4,2-dioxazinanes with excellent yields (up to 99%) and stereoselectivity (de/ee > 99%) in water has been described.
Collapse
Affiliation(s)
| | | | - Manas K. Ghorai
- Department of Chemistry
- Indian Institute of Technology
- Kanpur 208016
- India
| |
Collapse
|
18
|
2-Methylquinoline promoted oxidative ring-opening of N-sulfonyl aziridines with DMSO: facile synthesis of α-amino aryl ketones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
19
|
Romero AH. A theoretical conformational study on the structural parameters involved in the ring strain of exo-unsaturated four-membered heterocycles, Y = CCH 2CH 2X. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1213912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Angel H. Romero
- Laboratorio de Química Computacional y Teórica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela
| |
Collapse
|
20
|
Romero AH, Squitieri E. Effect of heterosubstituent and ring puckering angle on linear and nonlinear properties of exo-insaturated four-membered heterocycles, Y=CCH 2CH 2X: a comparative ab initio, DFT and semi-empirical study. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1193243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Angel H. Romero
- Laboratorio de Química Computacional y Teórica, Facultad de Ciencias, Escuela de Química, Universidad Central de Venezuela, Caracas, Venezuela
| | - Emilio Squitieri
- Laboratorio de Química Computacional y Teórica, Facultad de Ciencias, Escuela de Química, Universidad Central de Venezuela, Caracas, Venezuela
| |
Collapse
|
21
|
Ghorai MK, Sayyad M, Nanaji Y, Jana S. A Synthetic Route to Chiral Dihydrobenzothiazines through Ring Opening of Activated Aziridines with 2-Halothiophenols/Copper-Powder-Mediated C−N Cyclization. Chem Asian J 2015; 10:1480-9. [DOI: 10.1002/asia.201500153] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016 India
| | - Masthanvali Sayyad
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016 India
| | - Yerramsetti Nanaji
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016 India
| | - Sourita Jana
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016 India
| |
Collapse
|
22
|
Wang XX, Quan ZJ, Wang XC. Lewis-Acid-Catalyzed Direct Allylation of Electron-Poor N-Heterocyclic Amides through an Amide-Aldehyde-Alkene Condensation. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
23
|
Iodine-catalyzed three-component reaction of quinazoline-2,5-diones with aldehydes and styrenes for the synthesis of allylamine derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
24
|
Periyaraja S, Shanmugam P, Mandal AB. A Copper-Catalyzed One-Pot, Three-Component Diastereoselective Synthesis of 3-Spiroazetidinimine-2-oxindoles and Their Synthetic Transformation into Fluorescent Conjugated Indolones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301244] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
25
|
Wang Q, Leutzsch M, van Gemmeren M, List B. Disulfonimide-Catalyzed Asymmetric Synthesis of β3-Amino Esters Directly from N-Boc-Amino Sulfones. J Am Chem Soc 2013; 135:15334-7. [DOI: 10.1021/ja408747m] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Qinggang Wang
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Manuel van Gemmeren
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| |
Collapse
|
26
|
Ghorai MK, Tiwari DP, Jain N. Lewis Acid Catalyzed SN2-Type Ring Opening of N-Activated Aziridines with Electron-Rich Arenes/Heteroarenes. J Org Chem 2013; 78:7121-30. [DOI: 10.1021/jo401028j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Manas K. Ghorai
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Deo Prakash Tiwari
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Nikita Jain
- Department
of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| |
Collapse
|
27
|
Rai A, Yadav LDS. An organocatalytic approach to stereoselective synthesis of 2-hydroxyazetidines and 2-hydroxypyrrolidines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
28
|
Ghorai MK, Nanaji Y. Synthetic route to chiral indolines via ring-opening/C-N cyclization of activated 2-haloarylaziridines. J Org Chem 2013; 78:3867-78. [PMID: 23548056 DOI: 10.1021/jo400287a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A practical approach for the synthesis of 3-substituted indolines via regio- and stereoselective SN2-type ring-opening of 2-(2-halophenyl)-N-tosylaziridines with heteroatomic nucleophiles (O, N, and S) followed by palladium-catalyzed intramolecular C-N cyclization is reported in excellent yields (up to >99%) and enantiomeric excess (ee 99%).
Collapse
Affiliation(s)
- Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
| | | |
Collapse
|
29
|
Quan ZJ, Hu WH, Zhang Z, Da YX, Jia XD, Wang XC. One-Pot Synthesis of Allylamine Derivatives by Iodine- Catalyzed Three-Component Reaction of N-Heterocycles, Paraformaldehyde and Styrenes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201201097] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Zhang S, Zhan M, Luo Q, Zhang WX, Xi Z. Oxidation of C–H bonds to CO bonds by O2 only or N-oxides and DMSO: synthesis of Δ1-bipyrrolinones and pyrrolino[3,2-b]pyrrolinones from 2,6-diazasemibullvalenes. Chem Commun (Camb) 2013; 49:6146-8. [DOI: 10.1039/c3cc43061h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
31
|
Kenis S, D’hooghe M, Verniest G, Dang Thi TA, Pham The C, Van Nguyen T, De Kimpe N. Synthesis of 1-Alkyl-2-(trifluoromethyl)azetidines and Their Regiospecific Ring Opening toward Diverse α-(Trifluoromethyl)Amines via Intermediate Azetidinium Salts. J Org Chem 2012; 77:5982-92. [DOI: 10.1021/jo300694y] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sara Kenis
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Matthias D’hooghe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Guido Verniest
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Tuyet Anh Dang Thi
- Institute of Chemistry, Vietnam Academy of Sciences & Technology, 18 Hoang Quoc Viet, Cau giay, Hanoi, Vietnam
| | - Chinh Pham The
- Institute of Chemistry, Vietnam Academy of Sciences & Technology, 18 Hoang Quoc Viet, Cau giay, Hanoi, Vietnam
| | - Tuyen Van Nguyen
- Institute of Chemistry, Vietnam Academy of Sciences & Technology, 18 Hoang Quoc Viet, Cau giay, Hanoi, Vietnam
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| |
Collapse
|
32
|
Ghorai MK, Shukla D, Bhattacharyya A. Syntheses of Chiral β- and γ-Amino Ethers, Morpholines, and Their Homologues via Nucleophilic Ring-Opening of Chiral Activated Aziridines and Azetidines. J Org Chem 2012; 77:3740-53. [DOI: 10.1021/jo300002u] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Dipti Shukla
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | | |
Collapse
|
33
|
Das K, Shibuya R, Nakahara Y, Germain N, Ohshima T, Mashima K. Platinum-Catalyzed Direct Amination of Allylic Alcohols with Aqueous Ammonia: Selective Synthesis of Primary Allylamines. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106737] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
34
|
Das K, Shibuya R, Nakahara Y, Germain N, Ohshima T, Mashima K. Platinum-catalyzed direct amination of allylic alcohols with aqueous ammonia: selective synthesis of primary allylamines. Angew Chem Int Ed Engl 2011; 51:150-4. [PMID: 22086866 DOI: 10.1002/anie.201106737] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Kalpataru Das
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, CREST, Toyonaka, Osaka 560-8531, Japan
| | | | | | | | | | | |
Collapse
|
35
|
Ghorai MK, Sahoo AK, Kumar S. Synthetic route to chiral tetrahydroquinoxalines via ring-opening of activated aziridines. Org Lett 2011; 13:5972-5. [PMID: 22004011 DOI: 10.1021/ol2023906] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and stereoselective route for the synthesis of racemic and nonracemic tetrahydroquinoxalines via the S(N)2-type ring-opening of activated aziridines with 2-bromoanilines followed by the Pd-catalyzed intramolecular C-N bond formation is described.
Collapse
Affiliation(s)
- Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | | | | |
Collapse
|
36
|
Prediger P, Barbosa LF, Génisson Y, Correia CRD. Substrate-directable Heck reactions with arenediazonium salts. The regio- and stereoselective arylation of allylamine derivatives and applications in the synthesis of naftifine and abamines. J Org Chem 2011; 76:7737-49. [PMID: 21877731 DOI: 10.1021/jo201105z] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed, substrate-directable Heck-Matsuda reaction of allylamine derivatives with arenediazonium salts is reported. The reaction proceeds under mild conditions, with excellent regio- and stereochemical control as a function of coordinating groups present in the allylamine substrate. The distance between the olefin moiety and the carbonylic system seems to play a key role regarding the regiocontrol. The method presents itself as robust, as simple to carry out, and with wide synthetic scope concerning the allylic substrates and the type of arenediazonium employed. The synthetic potential of the method is illustrated by the short total syntheses of the bioactive compounds naftifine, abamine, and abamine SG.
Collapse
Affiliation(s)
- Patrícia Prediger
- Instituto de Química, Universidade Estadual de Campinas, UNICAMP, C.P. 6154, CEP. 13084-971, Campinas, São Paulo, Brazil
| | | | | | | |
Collapse
|
37
|
Ghorai MK, Nanaji Y, Yadav AK. Ring Opening/C–N Cyclization of Activated Aziridines with Carbon Nucleophiles: Highly Diastereo- and Enantioselective Synthesis of Tetrahydroquinolines. Org Lett 2011; 13:4256-9. [DOI: 10.1021/ol2016077] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Y. Nanaji
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - A. K. Yadav
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| |
Collapse
|
38
|
Denis JB, Masson G, Retailleau P, Zhu J. Cinchona Alkaloid Amide Catalyzed Enantioselective Formal [2+2] Cycloadditions of Allenoates and Imines: Synthesis of 2,4-Disubstituted Azetidines. Angew Chem Int Ed Engl 2011; 50:5356-60. [DOI: 10.1002/anie.201100706] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Indexed: 11/06/2022]
|
39
|
Denis JB, Masson G, Retailleau P, Zhu J. Cinchona Alkaloid Amide Catalyzed Enantioselective Formal [2+2] Cycloadditions of Allenoates and Imines: Synthesis of 2,4-Disubstituted Azetidines. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100706] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
40
|
Small-ring heterocycles as components of multidentate ligands: some structural studies relating to ring opening. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-9931-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
41
|
Bera M, Pratihar S, Roy S. Ag(I)-Catalyzed Regioselective Ring-Opening of N-Tosylaziridine and N-Tosylazetidine with S-, O-, and N-Nucleophiles and Tethered Dinucleophiles. J Org Chem 2011; 76:1475-8. [DOI: 10.1021/jo102285z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Milan Bera
- Organometallics & Catalysis Laboratory, Chemistry Department, Indian Institute of Technology, Kharagpur 721302, India
| | - Sanjay Pratihar
- Organometallics & Catalysis Laboratory, Chemistry Department, Indian Institute of Technology, Kharagpur 721302, India
| | - Sujit Roy
- Organometallics & Catalysis Laboratory, Chemistry Department, Indian Institute of Technology, Kharagpur 721302, India
- School of Basic Science, Indian Institute of Technology, Bhubaneswar 751013, India
| |
Collapse
|
42
|
Ye Y, Wang H, Fan R. Stereoselective Construction of Highly Functionalized Azetidines via a [2 + 2]-Cycloaddition. Org Lett 2010; 12:2802-5. [DOI: 10.1021/ol100885f] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Ye
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Hua Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Renhua Fan
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
| |
Collapse
|
43
|
Hata S, Fukuda D, Hachiya I, Shimizu M. Reductive Aldol and Mannich-Type Reactions of Azetidin-3-ones Promoted by Titanium Tetraiodide. Chem Asian J 2010; 5:473-7. [DOI: 10.1002/asia.200900457] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
44
|
Ghorai MK, Kumar A, Tiwari DP. BF3·OEt2-Mediated Highly Regioselective SN2-Type Ring-Opening of N-Activated Aziridines and N-Activated Azetidines by Tetraalkylammonium Halides. J Org Chem 2009; 75:137-51. [DOI: 10.1021/jo902244y] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| | - Deo Prakash Tiwari
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| |
Collapse
|
45
|
Sleebs BE, Van Nguyen TT, Hughes AB. Recent Advances in Stereoselective Synthesis and Application of β-Amino Acids. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304940903376028] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Brad E. Sleebs
- a Department of Chemistry , La Trobe University , Victoria, 3086, Australia
- b The Walter and Elisa Hall Institute of Medical Research Parkville , Victoria, 3052, Australia
| | - T. T. Van Nguyen
- a Department of Chemistry , La Trobe University , Victoria, 3086, Australia
- b The Walter and Elisa Hall Institute of Medical Research Parkville , Victoria, 3052, Australia
| | - Andrew B. Hughes
- a Department of Chemistry , La Trobe University , Victoria, 3086, Australia
- b The Walter and Elisa Hall Institute of Medical Research Parkville , Victoria, 3052, Australia
| |
Collapse
|
46
|
Ghorai MK, Shukla D, Das K. Enantioselective Syntheses of Morpholines and Their Homologues via SN2-Type Ring Opening of Aziridines and Azetidines with Haloalcohols. J Org Chem 2009; 74:7013-22. [DOI: 10.1021/jo901297d] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Dipti Shukla
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Kalpataru Das
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| |
Collapse
|
47
|
Ghorai MK, Das K, Kumar A. An efficient synthetic route to substituted tetrahydropyrimidines by Cu(OTf)2-mediated nucleophilic ring-opening followed by the [4+2] cycloaddition of N-tosylazetidines with nitriles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|